Sharpener for slicing machines



May 29, 1928.

H. s. ASHENHURST CELLULAR BUILDING BLOCK Filed Aug. '7, 1924 Zia/6162951 v Patented May 29, 19 28. v

RUDOLPH -w. nacnmm, or LA ron'rn,

commmr,

OF LA FORTE, INDIANA,

INDIANA, ASSIGNOR TO U. S. SLICING MACHINE A CORPORATION OF INDIANA.

SHABPENER FOB SLICING. MACHINES.

Application filed January 20, 1922. serial No. 530,578.

larly pointed out in theappended claims.

In the drawing- Fig.1 is an elevation with parts in section showing one embodiment oft-he present invention; and

Fig. '2 is a horizontal sectional view on lme 2-2 of Fig. 1.

As shown in the drawing, a pair of disc grinders 10 are supported on spindles 11 and 12, respectively, which are carried by a casing 13 containing mechanism for shifting the sharpeners 10 toward and from the casing. A sharpener of this character is shown in Patent no. 1,039,210. granted September 24, 1912, to-Hendrik Stukart. Any

other suitable form of operating mechanism for the grinder wheels may be employed.

The casing 13 is carried on a spindle 14 which is movably mounted in a socket member 15. The socket member 15 is provided -with abase- 16 which is su ported 'on the frame of a slicing: machine y screws passing through slots 17 in the base. The lowermost position of the casing 13 is determined by a screw 18 threaded into the base portion of the socket member'15. The screw 18 may be adjusted to properly locate the grinders 10--relative to the cutting edge ofthe slicing operating position.

A yoke 19 is secured to-the socket member and at its upper end by aset screw 20 and is provided with an arcuate opening 21 for receiving a pin 22 carried by the casing .13.

The pin 22 has a reduced portion 23 at itslower end of a size to move freely in the opening 21. The upper portion is of a larger diameter than the width of the opening 21, but. is small enough to enter enlarged portions 24 at opposite ends of the opening 21. It will be seenthat when the I casing 13 is raised to bring the part 23 in registration with the slot 21, the casing may projecting knife when the grinders are in be rotated through an angle of 90 the grinders 10 away from the knife. This rotation cannot take place, however, until the casing is raised to a sufiicient height to bring the sharpeners clear of the slicing knife. It will also beseen that the casing cannot be lowered except when the grinders are in proper position to engage the knife. or swung into an inoperative position at 90 from the operating position.

A nut 25 is threaded on the lower end'of to bring the ping22 to limit the upward movement of a the sharpener and it may be locked in place by a-set screw 26.

During tendency for the pressure of the stones against the beveled edge of the knife to raise the sharpener out of position to accurately shape the edge which is being sharpened. To hold the grinders in proper position a camshaped member 27 is pivoted at 28' to lugs 29 from the socket member 15. The walls of the socket member 15 are slotted to permit the cam 27 to cooperate with the spindle 14. A handle 30 is provided for op.- erating the cam 27 and a spring 31 may be interposed between the face of'the cam and the spindle 14. This spring will retain the cam in any position of ad'ustment to which it is moved. When the grinder is in operating position and the cam thrown downwardly to the position shown in full lines in Fig. 1. the sharpeners will be firmly clamped in their lowermost position and accurately held to their work. When it is desired to removed the grinders from the knife the cam is raised to the dotted line position shown in Fig. 1, thus freeing the s indle 14 so that the sharpener may be lifte and rotated to its inoperative position. It will be seen that the cam 27 will cooperate with the spindle 14 regardless of the hei ht of the spindle in the socket 15 so that a justment of the screw 18 does not afie'ct the operation of the cam as a locking device.

I claim 1. Sharpening mechanism for slicing ma- .chines comprising a socket member, a vertically and laterally adjustable sharpener having a spindle arranged to fit in said socket member, a threaded device for limiting the downward movement of said spindle in said socket member, a cam carried by said socket member for engaging said spindle to hold said spindle against movement, and a spring a grinding operation there is a lines 10, in Fig. 1. The resultant product is indicated at 11, in Fig. 2, and consists of a section of cellular material, the side edges 12 of which are preferably smooth and of relatively dense material. The body is comosed of cells, one or both side faces of the lilock exposing the cells thatare broken or transversely divided. This provides an ideal surface for the reception of plaster.

I do not desire to be limited to the use of any specific combination or proportions of ingredients for the formation of my improved block. I have, however. obtained very good results in accordance with my said prior patent. by the use of a mixture of the following proportions,-1()0 poumls of calcined gypsum, 2 ounces of commercial rctarder, 3 pounds of a suitable carbonate such as calcium carbonate, and 8 pounds of aluminum sulphate containing its water of crystallization, all of such ingredients be ing finely ground and thoroughly mixed in a dry state. I

\Vhile I have illustrated and described a block which is rectangular in form, it will be understood that the invention is not thus limited Other shapes may be roduced with the same advantageous resu ts. The scope .of the invention is indicated in the appended claims.

I claim:

1. A unit block for a wall, made up principally of body material of cellular forma-- tion throughout and having at least one face detined by cell depressions separated from each other only by the cell walls and provided by the removal of the outer portions of the cells.

2. A unit block for a wall, made up principally of body material of cellular formation throughout in which the individual cells are largely walled oii' completely from the adjacent cells, said block having at least one face. marked substantially throughout by shallow cell depressions separated from each other only by the cell walls and provided by the removal of the outer portions of the cells.

Signed at Chicago, Illinois, this 4th day of August, 1924.

HAROLD S. ASHENHURST. 

